Tin and Sheet Millmen's Association Reports 1913-1914,
- SWCC : MNA/TUG/6/8.
- Ffeil
- 1913-1914 /
Tin and Sheet Millmen's Association.
Dangos 3 canlyniad
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Tin and Sheet Millmen's Association Reports 1917-1919,
- SWCC : MNA/TUG/6/10.
- Ffeil
- 1917-1919 /
Tin and Sheet Millmen's Association.
Tin and Sheet Millmen's Association Reports 1915-1916,
- SWCC : MNA/TUG/6/9.
- Ffeil
- 1915-1916 /
Tin and Sheet Millmen's Association.